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olya-2409 [2.1K]
3 years ago
9

What is an emission spectrum?

Chemistry
1 answer:
SashulF [63]3 years ago
8 0

Answer:

D

Explanation:

The electromagnetic radiation is emitted due to a particle moves from a higher to a lower energy state

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A certain sample of a gas has a volume of 20 L at 0 oC and 1 atm. A plot of the experimental data of its volume against the Cels
creativ13 [48]

Answer:

The absolute zero temperature T = - 269.91° C

Explanation:

From the given information:

The plot of the volume of the experimental data against the celsius temperature can be expressed mathematically as:

V = mT + c

V = 0.0741 × T+c --- (1)

where;

m, which is the straight line of the slope = 0.0741

replacing the value of V to be = 20 L, T= 0.

Then:

20 = 0.0741 × 0 + c

20 = c

From equation (1), replacing the value of c with 20, we have:

V = 0.0741 × T+20

SO, to determine absolute zero temperature: we have the volume to be zero at absolute zero temperature, Thus:

0 = 0.0741 × T+20

0.0741 T + 20  = 0

0.0741 T = - 20

\mathbf{T =  \dfrac{-20}{0.0741}}

T = - 269.91° C

6 0
3 years ago
Atomic weight of first 30 element in periodic table ​
Andreyy89

Answer:

The answer is in the explanation

Explanation:

The atomic weight of an element is defined as the mass of 1 mole of atoms of the element. To find the atomic weight of the first 30 elements we must see our periodic table:

#      Element       Atomic Weight

1       Hydrogen 1.008

2 Helium 4.0026

3 Lithium 6.94

4 Beryllium 9.0122

5 Boron 10.81

6 Carbon 12.011

7 Nitrogen 14.007

8 Oxygen 15.999

9 Fluorine 18.998

10 Neon 20.180

11 Sodium 22.990

12 Magnesium 24.305

13 Aluminium 26.982

14 Silicon 28.085

15 Phosphorus 30.974

16 Sulfur 32.06

17 Chlorine 35.45

18 Argon 39.948

19 Potassium 39.098

20 Calcium 40.078

21 Scandium 44.956

22 Titanium 47.867

23 Vanadium 50.942

24 Chromium 51.996

25 Manganese 54.938

26 Iron 55.845

27 Cobalt 58.933

28 Nickel 58.693

29 Copper 63.546

30 Zinc 65.38

7 0
3 years ago
6th grade science if you can help me thanks :)
Blizzard [7]

Answer:

weather tis is answer for que

5 0
3 years ago
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Which flow chart is accurate?
djverab [1.8K]

Answer:

<em>The correct option is A) DNA → RNA → protein</em>

Explanation:

Central Dogma can be described as the process under which the processes of transcription and translation are focused. It is the process by which particular parts of DNA or particular genes make up the specified proteins which are required.

The conversion of DNA into RNA is known as transcription. This process occurs in the nucleus. The conversion of mRNA into proteins is termed as translation. This process occurs in the ribosomes of the cytoplasm.

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Science-HELP ME IDK THE ANSWER TO THIS
zzz [600]

Answer:

Explanation:

its b i did this i k its gonna be right

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